Final answer:
Flowers are reproductive organs of plants with male and female parts. Stamens produce pollen grains as male gametes, while carpels contain female gametes inside ovules. The ovary of a carpel ripens into a fruit after fertilization, facilitating seed dispersal.
Step-by-step explanation:
Flowers are the reproductive organs of plants. They consist of male and female reproductive structures. The male reproductive structures in a flower are called stamens and produce pollen grains, which are the male gametes. The female reproductive structures are called carpels and contain the female gametes, which are eggs inside the ovules. After fertilization, the ovary of a carpel ripens into a fruit, which ensures the dispersal of seeds.